<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <h3>登录页面</h3>
    <form action="login" method="post">
        <input type="text" name="username" placeholder="输入用户">
        <br>
        <input type="password" name="password" placeholder="输入密码">
        <br>
        <input type="submit" value="提交">
    </form>
</body>
</html>